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Finding the Fourth Proportional to 18,349,843.60, 27,523,890.60 and 6,218,117.20

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Solution

The fourth proportional to 18,349,843.60, 27,523,890.60 and 6,218,117.20 is: 9,326,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349,843.60 : 27,523,890.60 = 6,218,117.20 : x
  2. Step 2: Convert to fraction form
    18,349,843.60/27,523,890.60 = 6,218,117.20/x
  3. Step 3: Cross multiply
    18,349,843.60x = 27,523,890.60 × 6,218,117.20
  4. Step 4: Simplify right side
    18,349,843.60x = 171,146,777,550,778.34
  5. Step 5: Solve for x
    x = 171,146,777,550,778.34/18,349,843.60
  6. Step 6: Final answer
    x = 9,326,879.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.